CAL- Observations of the compact cluster of galaxies A496 at different off-axisangles will provide changes in count rates for different energy bands. Thesewill be used to derive the vignetting function of the XMM telescopes indifferent energy bands.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2000-03-13T10:00:29Z/2000-03-15T01:31:26Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr Fred Jansen XMM-Newton PS, 2000, 'In-orbit measurement of the XMM telescope vignetting function', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-376kiza
